Possible Clues:

• How a fly-by-night begins to be a parent
• Four-winged insect
• Armyworm, eventually
• 'The structure of a play is always the story of how the birds come home to -' (Arthur Miller)
• Test's hard for night flyer
• Fairy like 13
• Nocturnal winged insect
• Henry and Thomas brought back insect
• Gypsy or luna
• Insect; fairy (MND)